Telephone apparatus.



(. L. CREVELING,

TELEPHONE APPARATUS.

APPLICATION FILED Nov. 5, 1908..

Patente@ may 39129.

2 ssmsmsmm I.

J. L. CREVELINGg TELEPHONE APPARATUS.

APPLIUATION FILED Nov.5,19o2.

n 929927K Patented May 4,1909.

2 SHBBTS-SHEBT 2.

i W j.

JOHN L. ci znvnLine,

parier-rr session. l

OF NEW YORK, N.

' TELEPHONE APPARATUS.

(so. 920,277. i l

' `'I ooZZ whom it may concern.'

` Be it known vthat 'IyJonN l1. CREVELING, a resident of New. York, in the county and State of New York, have invented a certain new and vuseful Improvement in Telephone Apparatus, as set forth in the an nexeds pef-i- ?ication and drawing', forming); a part thereof.

` Myinvention pertains to that class of apparatus intendedl to be used in connection .with the ordinary receiver of a telephone and sound impulses emitted by a sin gie telephone receiver audibletoboth ears of an operator .f-instead of one only .as is usual.

, n is a furtherobjeet of niy invention to 'cut-lout, extraneous disturbances which or dinarily tend to confuse or annoy a person using'a single receive-r leaving one ear open sto the eflect of such impulses.

It is a further 'object of my invention to glovide a simple and eflicient'device for fuling the -above functions which may be vreadily applied tothe ordinary telephone receiver without defacing or altering the saine and which when applied will alter the eir'ect I f the usual receiver on a single ear in the .,leastpossible lmanner when the connection :to the second ear is not used, and when the saine is in use, al tert-he aetion of the ordinary receiver upon the ear to which it is applied in ,the least-possible manner.v FigureI. showsa side elevation and partial `section ofonetype of my improved apparatus.. Fig II. shows a side elevation and partial-section of a rnodiiied forni of the apparavtus shown in Fig. III. shows an end -'j elevation of onetype of, spring means of atyftaching niy improved apparatus to the ordi- `nary receiver. Fig. IV. shows a side elevation of the device shown in F III. l

In Fig. I. (1)r represents thehody portion ofthe ordinary telephone receiver, in this instance shown as the standard Bell type, provided with a threaded portion (2), diathe opening of an operatons ear.

(6)'repres'ents one ear piece of my i1nproved apparatus'shaped on one side to iit closelyt'hecontourof the ear piece (4) and so Q `shaped asto present atits other side substantially'v the same contour asth eorrespending` face ofthe ear piece (4). The earv f-'piece (6) 'is provided withaperture (7.) registering with the aperture (5) and communi- .eating with the sound duet orv passage (8) y Specification of Letters Patent. Application inea November 5, 190s. seria1No.461,11i

asI for its principal object lrto renderthephragrn (3)7 and. ear piece (4) having the app-yerture..(5) normally intended to register with resented Maya, loos,

' which terminates in the opening' o1 tno rnetallic'sermv tl'ireaded liushinjii (it) adapted to receive the threaded nipple (1U) in operative connection with a sound tube (1 1 piece (6) may be held in place upon the ear piece (4) by means of a spring` ring; (12) eil-- raging a circumferential groove (123) and provided with fingers (1.4) adapted to spring; over or gri p the member (l).

(1.5) represents an ear piece provided with a central opening-(16) adapted to register and communicating with the interior ol the nipple (1.7), which is inoperative con'nnunication with the sound tube (11). The nipple (18) into which may be placed a ball (19) held tl'ierein as by the-screw cap (20) in such manner that when theear piece is in the )osition as shown in FigpI. the ball will roll in the branch passagennd in no Way obstruct the passage through the nipple (1 7), while il the ear piece be inverted th(` hall (19) may roll down into the main passage of the nipple (17) so as to close communication between the nipple and the opening (16) as shown for exarnrple in the corresponding ear piece illustrate in Fig. II..

The above description. applies t0 the inodiiieation vshown in Fig. II. save that the sound duet (21) is a tubular opening entirely within the ear piece (6) communicating with the -aperture (7) and a portion ol the inner sur face ofthe ear piece (6) is shown as provided with a felt or other yielding lining as illustrated at (22) and the ear piece (6) is shown as heldin place upon the ear piece (4) by rreans oi clips (23) carried by s )ring ring (24) as will hereinafter. more plainly appear. The ear piece (15) is the saine as shown in Fig. I. and is in the inverted positin described in reference to Fig. I.

In Figs. III. and IV. (23) represents the lingers adapted t0 hold the pieces tofether as shown in F ig. Il wliieh are carried y the spring ring (24) adapted to hold said lingers in close contact upon the ear pieces when sprung over the saine..

The practicali operation of niy improved telephone apparatus is substantially as folear ieee (4) as shown in Fig. I. and if desired) may be held in place thereon as by means of spring rin (12) and fingers (14) as indicated, then if t e ear ieee (6) be presented tofone of the ears olpanoperator the "lll le en!" with'the opening of the ear oi an operator (17) may be 'irovided with a branch opening lows: The ear piece (6) is placed against the the ear to Which said ear p by the vibrations of the diaphragm (3) wi be propagated through the apertures (5) and (7) so as to be audible to the ear to which the said receiver is presented. N aves Will also be propagated through the duct (S), nipple (10), tube (11) and nipple (17) to the opening (16) ofthe ear piece (15) when heid in the position shown in the drawing, in Which position itmay be applied to the other ear of an operator to cause the vibrations set up by the diaphragm (3) to be audible to that ear, and by roper construction or" the ear piece it Wil be made serve to cut out extraneous sounds which would ordinarily tend to confuse an operator.

If for any reason the operator should not desire to place the ear piece (15) to the second ear but should just allow the same to drop and hang on the sound tube (11) it Will then assume the inverted position shown in Fi II, in which position the bail (19) Will rol against the aperture lof the nipple (17) in such manner as to close the saine and prevent a Waste 'of energy due tothe sound Waves being propagated through the tube (11) to the aperture (16) and thence dissipated Without e `ect. As soon as this piece is picked up and placed to the car the ball (19) will roll back into the position shown in Fig. I, and the sound Waves Will then cause an effect on e is applied.

l The above description oi me operation of my device is a plicabie to the oar piece (I3) indicated in Fig. II. which is identical with the ear piece (6) of Fig. I. with exception that the duct (21) is entirely Within the piece (6) as may be preferable and the abutting surface of the ear ieee' (6) is covered with a felt or other suita le lining (22) which will serve to make a sound: tight joint between the two pieces. In this hgure the two ear pieces (6) and (4) are shown as held in operative relation to each other by ngers (23) which are held in lace upon the ear piece as by means oi' the e astio ring (24) which carries the said fingers. The construction of this type of spring ring may be readily understood With reference to l1 igs. UI. and IV. and it will be obvious that by properly' opening ring (24) the same may' be s rung upon the ear ieces (4) and (6) in suoi manner as to hol them together.

I do not Wish in any Way to limit myself to any exact device or construction shown in the accompanying drawing Which is a mere representation of particular types of apparatus embodying my invention and in Whichconsiderable alterations may be made without departing from the spirit of my invention.

I claim- 1. The combination with a receiver having an ear piece, of an ear piece adapted to be placed against said receiver ear piece and against the ear of an operator, an aperture sound Waves set upi ear piece with sai for the transmission of sound traves therel through, said ear piece being so shaped to form a substantially close joint between itself and the receiver ear piece and provided With a sound duct in communication with the above mentioned aperture, said duc t being in operative connection with a sound tube and a second earpiece in operative connection with said sound tube.

' 2. The combination with a receiver hav ing an ear piece provided :vit-h anindentation, of an ear piece provided with an er tension adapted to substantially iill said indentation, an aperture in said ear piece adapted to register with the ear. of' an operaso tor and baving'in communication therewith a sound duct operatively connected *ith a sound tube provided at its other extremity with an ear piece communicating therewith` 3. The combination With a telephone receiver provided with an ear piece having a surface adapted to be placed against the ear of an operator, of an ear piece so shaped as to substantially abut a greater portion of said surface and present on its opposite face -a surface adapted to be placed against the ear of an operator, an aperture in said ear piece adapted to transmit sound Waves therethrough, a byepass in communicatini therexH with and o reratively connected a sound o5 tube rovi ed `with an ear piece adapted to be he d .against another ear of an operator.

4. The combination with a tcle'ihone re ceiver having a surface adapted to c piaceri against the ear of an operator, of a. meint f adapted to be placed a ainst said surface and make an approximate y close contact there with on one side and present unonthe other side a surface adapted to be p facil against the ear, an aperture in said member for transmission of sound Waves therethrough, an ear piece and means o' eratively connecting said aperture. Y 5. The combination with a receiv'er havingan ear piece, a member adapted to be placed between said ear piece an( thc car of a user and transmit sound therethrough, a second ear piece in operative connection therewith and adapted to convey sound impulses to another ear, of means for holding said member in operative relation to aid receiver ear piece comprising as r' vided with fingers engaging saiil and said ear piece.

6. The combination with a telephon.: re ceiver and means for rendering its im iulscs audible to both ears ol"y an operator, com` prisin .a .plurality of ear pieces, of means Where y one of the ear pieces is automatically cut out When not in use.

7. The combination with a telephone re ceiver adapted to produce' an effect uponone ear of adoperator and means connected therewith and adapted to transmit "said effect to another ear of means whereby the lli) avoided when the saine is not utilized,l l

8,' A plurality of ear pieces operatively connected with eachother combined with means whereby a telephone receiver placed in operative relation to one ear piece transmits sound alsoto theotlier ear piece and means whereby said transmission is automatically arrested when said latter ear piece is not in use.

` 9. The combination with atrecciver having an' ear piece of a plurality'of ear pieces operatively connected with cach other in such manner that when one of the ear pieces is placed in operative relation to the ear )ieee/of the receiver soundrnay be emitted u troni the ,plurality of ear piecesI and means whereby one of the ear pieces may be autoniatieally cut out.

1Q, yhe coinbinationwith atelephone re- 'ceiver'l an ear piece adapted to be placed against the `ear of an operator, another ear piece adapted to be placed against another ear of an operator and means operativelyl connecting said last named ear )iece with said Ireceiver*comprising; a soun( tubeof means Wlierebythe connectlon of said soundtube is automatically cut oli depending upon the' position of the ear piece. l

` JOHN L. CREVELING.

Vl-Titnesses: I

(1J. STQCKLEY, G. R. JEWETT. 

